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He already had hair and lungs and genitals and stamina. Because werehog only made him gain traits, not lose them.Following the earlier would make ever more fridge logic on how he breathe on land, and have fur. If you're wondering how he retains his mind, think Kingdom Hearts. So, with that logic, his body was rather possessed by Dark Gaia, hence why the form only appears at night, has the ability to stretch arms (I've seen the other creatures do it), and since he's an anthropomorphic creature, it can pretty much justify why it affected him differently than the humans affected by it. It's rather that during the blast that woke up Dark Gaia, part of the Eldritch Abomination shot back up to the satellite and infected Sonic. Would've worked, if not for the fact that the Werehog isn't the result of the negative energies of the Emeralds.Chaos transforms into sea creatures when exposed to the NEGATIVE energy of the Chaos emeralds, why shouldn't Sonic also? - Not a troper, but was sitting in front of a fridge. His body, nose in particular, takes the shape of a shark and his arms can flail about like octopus tentacles. Then it occured to me when replaying Sonic Battle: he's not a wolf at all, he's a sea creature. I was always confused as to why exactly the Werehog looks so odd, and why he's able to stretch his arms.